Torch holder



"Aug, 15, 1933. -Rjw'ysg .1,922,499

TORCH HOLDER l v Filed Auggzs, 1932 V' 2 sheetssheet 2 l mfllJ// n i '2 INVENTOR t y ATTORNEYS Patented Aug. l5, 1933 ronca ripiena Wyss, Brun. com.;v

nomen lippucauonfaugusvt'zs, 1932. serial No; l'630,049

"nomma, This inventionv relates to cutting tools, and

Vmore particularly to apparatus for controlling the movement of altool to cut the work to which it is applied, at any predetermined angle.

The apparatus is particularly adaptedfor use in cutting metal pipes and other cylindrical objects, it is preferably used-'in association'with an Oxy-acetylene blowrtorch, and object-resides in the variably predetermined to a measurable degree. The apparatusv guides the toolfaround the pipe or other object in a angle to'the axis of the pipe, thereby preparing thel pipe for joining it to another pipe o 'r object at a desired angle, by welding or other' suitable connecting means. r

' shown in theaccompanying drawings, in the several views of which correspondingparts are simiadjusting elementsY of the apparatus, looking in the direction of thefarrow 2 in lffigure 1 and drawn tota somewhat larger scale, i 'Figure 3=is a section Vtaken on the line 3 3, Figure2,' f

Figure 41s a s ure 2,

Figure 5 is the line 5 -5 in Figure Land lFigure 6, a; section on the linee- 6, Figure 1; Referring further to the to be cut is `shown at 5.y The apparatusis'secured upon the pipe by a clamping-element which inits preferred form, ing two integral forks 'l adapted to embrace the pipe, and a chain a which 'is drawn around the pipe between the forks. The body of the clamping-element having a keyholeV swt 12u) noma unkor the chain and the' other iughaving an vaperture tof `opposite end o1' ther receive a screw 13 at the chain, adapted toA cooperate with a'wing-nutl'd for tightening 4the chain around rthe pipe. The body of the clamping-element has yfurthermore,.a vertically bored 'support of a. pin 16 provided with a 'anged head 1'7 which Arests upon the upper fork of vthe ele- --ment. l

The head `17 which'is circular inform and cen-f trally apertured, provides the stationary memthecutting tool 'is moved.'

its principal provision of an adjustment 10 whereby theangle of the cutting plane may be` turning-,bar 21.

plane at a predetermined An` vembodiment c! the invention has-beeriv a section in y the `'plane iric'licatedA by' drawings, the pipe consists of abody 6 hav,-k

has oppositely projectinglugs 9 and" r10 to which the chain is fastened, one of the lugs lo1' the nozzle 32 of the torch.-

.socket 15 for the rotary ber of a measuring'r ,element of .the vernier t which, inthe operation fof the apparatus, de-

termines the Yangle of the plane through which The other member of the measuring element consists of a centrally apertured disk 18 rotatable with relation to the head 17, the rotary connection of the two vmembers being established through v,the medium of a headed'bolt 19 and a nut V2o prqvided with a1 longitudinally mpvable The Vtwo 'circular members ofthe measuring element are [graduated at theirpripheral edges, Ito cooperatively measure the angle kof the cutting plane relative to -theaxis of' the pipe,

Integrally connected withthe rotaryk disk, is a laterally projecting spindle 22 for the supporto! an assemblage of jointed 'arms',2 3, 24 and 25, the, outer one o1' which supports" the vcutting-tool 26.

' are connected to move relative The three arms to eachother and the rotary member of the measuringjelement about4 parallel axesv and the cutting tool is held on a-carrier mounted at the end ofthe outermost 'arnrto jr'nove about an axis parallel to theothe'r axes. 'The arms areto this end provided with heads which are bored at right anglesl tothe longitudinal 'extent ofthe arms lfor the reception oi'mheaded pintles 27 by which they are pivotally connected. Nuts28 on screw-threaded.v protruding ends of the pintles, hold the latter against displacement. The outermost 25 has'atits free v'extremitya bored head/29 for the pivotal support of the carrier for the cuttingtool 26 whichfasshown in the drawings, consists o f an Oxy-acetylene torch. The construction of the' torch per se,"is not a part 'of the present inventionfthe conduits lfor supplying acetylene and; oxygenjto the V torch having been shown at V30 andai. 'Y j f The carrier Lis preferably'composed of a lheaded 95 pintle 3dr-rotatable in the head 29 of the varm 25,' andan angular n t 33screwed upon a threaded end ofthep'intleand apertured for the support minedy cuttingplane around the work and the position vof. the axis of rotation of the jointed armswith relation to theaxisofv the work, 4i. e.,

l termine the angle. of

Aplane relative to the axis the position of the spindle 22 of the rotary disk 18, determines the plane through which the torch moves; or, in other words, the angle of the cutting plane relative to the axis of the work.

Pivotal adjustment of the pin 16 in the socket 6 of the clamping-element, cooperates with adjustment of the rotary member of the Vernier relative to the other member, to determine the angle of the plane described by the torch in its movement around the work, the pin being held in its adjusted positions by a set-screw 35.

The apparatus is thus particularly adapted for mitering pipes, bars and other cylindrical objects at any desired angle Within the measuring capacity of the measuring-element, and it completely avoids the necessity of using' templets and other similar extraneous devices heretofore employed.

Another advantage of the apparatus is that in the cutting operation the torchvis supported by the exible holder and is not held in the hand of the operator as in the usual methods of cutting heretofore employed. The accuracy of the angle, at which the Work is cut, and the smoothnessand regularity of the edge of the cut are assured, and labor and time are saved to a considerable extent.

It will be apparent that variations in details of construction and in the arrangement of the cooperating parts of the apparatus as hereinabove described and asshown in the drawings, may be resorted to without departing from the scope and spirit of the invention, as dened in the hereunto appended claims.

What I claim and desire Patent is: I

1. Apparatus of the character described, comprising a measuring-element adapted to predetermine the angle of a' cutting-plane relative to a fixed axis ofthe work, a tool-holder mounted for adjustment by the measuring-element and composed of a plurality of arms joined in end-to-end relation for movement about parallel axes, and a cutting tool pivotally mounted at an end of the holder;

2. Apparatus of the character described. comprising` a measuring-element adapted to predetermine the angle lof a cutting-plane relative to a xed axis of the Work, composed of two graduated disks, one of which is mounted for rotary adjustment relative to the other, a exible toolholder pivotally carried at one end by the adjustable disk, and a cutting-tool at the free end of the holder.

3. vApparatus of the character described, comprising a measuring-element adapted to predea cutting-plane relative to a fixed axis of the work, composed of a disk rotatable about a xed axis, a second disk mounted to secure by Letters for rotary'adjustment relative to the first disk,V

the disks being graduated to measure the extent of said adjustment,'a flexible tool holder pivotally carried at one end by the adjustable disk, and a' cutting tool at the free end of the holder.

4. Apparatus of the character described, com-- prising a support, means to x the same relative to the work, a measuring-element on the support adapted to predetermine the angle of a cutting of the work and composed of a member mounted for rotary adjustment about an axis parallel to that of the work, a member mounted for rotary adjustment relative to the other, a ilexible tool-holder pivotally carried at one end on the last-mentioned member,

pivoted at they free-end of the ting plane relative to the axis of the work and composed of a member mounted for rotary adjustment about an axis parallel to that of the work, a member mounted for rotary adjustment relative to the other, a tool holder composed of a plurality of arms, and a tool-carrier carried on the last-mentioned member, the arms and the toolcarrier being joined together for movement about parallel axes.

6.V Apparatus of the character described, comprising a support, means to fix the same relative to the vWork, a measuring element on the support, composed of graduated members, Vone of which is rotatably adjustable relative to the other, a exible tool-holder pivotally kmounted at one end on the ,adjustable memberv of the measuring-element, and a tool-carrier pivoted at the free end of the holder. l

7. Apparatus o1' the character described, comprising a support, means to x the same relative to the work, a measuring-element on the support composed of a. pin rotatable on the support and having a circular head, means for lxing the pin against rotation, a disk rotatable coaxial relative to the circular head, and carrying a laterally extending spindle, means for fixing the disk in adjusted pivoted at one end on the spindle, and a toolcarrier pivoted at the free end ofthe holder. n

8. Apparatus of the character described, comprising a support, means to 11x the same relative to the work, a measuring-element on the support, composed of a pin rotatable on the support and having a circular head, means` for fixing the pin against rotation, a disk rotatable coaxial relative to the circular head, and carrying a laterally extending spindle, means for fixing the disk in adjusted positions, a flexible holder composed of a plurality of arms movable conjointly about the spindle and movable relative to eachother about axes parallel to that of the spindle, and a tool-carrier on the holder movable about an axis parallel to the others.

9. Apparatus of the character described,`comto the work, a

of which is rotatably` adjustable relative to the other andcarries a radially projecting spindle, means for fixingy the adjustable member in adjusted positions, a exible holder composed of a plurality of arms movable conjointly aboutthe spindle and movable relative to each other about axes parallel to that of the spindle, and a toolcarrier on the holder movable about an axis parallel to the others. i

11. Apparatus of the character described, comprising a support, means to x the same relative to the work. a measuring-element on the suppositions, a flexible holdery measuring-element on the sup-y port, composed of coaxial circular members, one

of said parallel axesrelative port, composed of coaxial circular members, one of which is rotatably adjustable relative to the other and carries a radially projecting spindle,`

- ment for movement about parallel axes, a toolcarrier mounted on one of the arms, and a measuring-element on the support carrying the toolholder and adjustable to` predetermine the angle t0 a vnliied 4axis of o! the character descr a support, means to measuring eleme the angle of a out xls of the work, a tool asuring-element,

13. Apparatus nt on the support ting plane relathe Work, a to predetermine tive to a i'lxed carried by the me comprising a Y having pivotal connec nt about parallel axes, an

ofthe arms, the arms ement of the tool carthe work inthe pretheir moveme carrier mounted on one cooperating to rier about the fixed determined plane.

permit mov los ias 

